WO2019235428A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2019235428A1
WO2019235428A1 PCT/JP2019/021999 JP2019021999W WO2019235428A1 WO 2019235428 A1 WO2019235428 A1 WO 2019235428A1 JP 2019021999 W JP2019021999 W JP 2019021999W WO 2019235428 A1 WO2019235428 A1 WO 2019235428A1
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WO
WIPO (PCT)
Prior art keywords
cover
light
pattern
light source
point light
Prior art date
Application number
PCT/JP2019/021999
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English (en)
Japanese (ja)
Inventor
真 蓮尾
克佳 出戸
拓 速水
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2019235428A1 publication Critical patent/WO2019235428A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material

Definitions

  • the present disclosure relates to a lighting device.
  • illumination devices have not only a function of illuminating the surroundings but also a function as indirect illumination for illuminating a ceiling or the like.
  • a first light source substrate that includes a plurality of LED elements as a main light source and irradiates light
  • a second light source substrate that includes a plurality of LED elements as a sub-light source and irradiates light.
  • the first light source substrate is arranged to emit light downward
  • the second light source substrate is arranged to emit light upward.
  • This disclosure provides a lighting device that can project a pattern onto a construction material such as a wall or a ceiling.
  • an illumination device includes a point light source that emits light, a translucent portion that transmits light emitted from the point light source, and light emitted from the point light source.
  • a pattern cover disposed behind the point light source, and translucent, disposed in front of the pattern cover and the point light source, diffusing light from the rear and front And a diffusion cover for emitting light.
  • a pattern can be projected on a construction material such as a wall or a ceiling.
  • FIG. 1 is a perspective view showing a lighting apparatus according to Embodiment 1.
  • FIG. FIG. 2 is an exploded perspective view showing the lighting apparatus according to Embodiment 1.
  • FIG. FIG. 3 is a cross-sectional view showing the illumination apparatus according to Embodiment 1 taken along line III-III in FIG.
  • FIG. 4 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 5 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 6 is a plan view illustrating a pattern cover of the lighting apparatus according to the first embodiment.
  • FIG. 1 is a perspective view showing a lighting apparatus according to Embodiment 1.
  • FIG. FIG. 2 is an exploded perspective view showing the lighting apparatus according to Embodiment 1.
  • FIG. 3 is a cross-sectional view showing the illumination apparatus according to Embodiment 1 taken along line III-III in FIG.
  • FIG. 4 is a plan view illustrating a pattern cover of the
  • FIG. 7 is an explanatory diagram illustrating a state of light shielded by the light shielding portion when the pattern cover is arranged in parallel to the ceiling surface in the illumination device using the LED bulb according to the comparative example.
  • FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shield when the pattern cover is arranged in parallel with the ceiling surface in the illumination device using the point light source.
  • FIG. 9 is an explanatory view exemplifying the state of light shielded by the light shielding unit when the pattern cover is arranged in parallel to the ceiling surface in the apparatus according to the present embodiment.
  • FIG. 10 is a perspective view showing the lighting device according to Embodiment 1 when only the point light source is turned on.
  • FIG. 10 is a perspective view showing the lighting device according to Embodiment 1 when only the point light source is turned on.
  • FIG. 11 is a cross-sectional view showing a lighting device according to a modification of the first embodiment.
  • FIG. 12 is a perspective view showing the lighting apparatus according to Embodiment 2.
  • FIG. 13 is an exploded perspective view showing the lighting apparatus according to Embodiment 2.
  • FIG. 14 is a cross-sectional view showing the lighting apparatus according to Embodiment 2 along the line XIV-XIV in FIG.
  • FIG. 15 is a perspective view showing when the lighting apparatus according to Embodiment 2 is turned on.
  • FIG. 16 is a perspective view of a system including a plurality of lighting devices according to a modification.
  • the direction in which the diffusion cover is disposed with respect to the translucent support cover is made to coincide with the Z-axis direction
  • the width direction of the lighting device is made to coincide with the X-axis direction.
  • these associations do not limit the posture at the time of manufacturing or using the lighting device according to the present disclosure.
  • the X axis plus direction side indicates the arrow direction side of the X axis
  • the X axis minus direction side indicates the opposite side to the X axis plus direction side. The same applies to the Y-axis direction and the Z-axis direction.
  • FIG. 1 is a perspective view showing a lighting apparatus 1 according to Embodiment 1.
  • FIG. 1 is a perspective view showing a lighting apparatus 1 according to Embodiment 1.
  • the lighting device 1 can perform main lighting and indirect lighting such as construction materials such as walls and ceilings, and is a ceiling light, for example.
  • the lighting device 1 is connected to an external power source through a mounting adapter that engages with an indoor wiring device such as a hook ceiling provided on the construction material, and is used by being fixed at a predetermined position on the construction material.
  • a circular shape in plan view will be described as an example.
  • the shape is not limited to this, and for example, a polygonal shape, a semicircular shape, or the like is used. Can also be applied.
  • FIG. 2 is an exploded perspective view showing the lighting device 1 according to the first embodiment.
  • FIG. 3 is a cross-sectional view showing lighting apparatus 1 according to Embodiment 1 taken along line III-III in FIG.
  • the illuminating device 1 is the fixture main body 3, the translucent support cover 30, the pattern cover 40, the mounting base 50, the point light source 52, the diffusion cover 70, and the unillustrated.
  • a control circuit and a power supply unit are included.
  • the instrument body 3 includes an exterior cover 101, a first base member 110, a second base member 120, a light emitting module 130, and a light source cover 140.
  • the exterior cover 101 constitutes a part of the outer shell of the instrument body 3.
  • the exterior cover 101 is a ring-shaped member having a circular container shape in plan view and having an opening formed in the central portion.
  • the outer cover 101 fixes the diffusion cover 70 at the outer peripheral portion and engages with the first base member 110 at the inner peripheral portion.
  • the material of the exterior cover 101 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate.
  • the first base member 110 is disposed on the inner peripheral portion of the exterior cover 101.
  • the first base member 110 is an annular member having an opening at the center.
  • the 1st base member 110 has the collar part 111 formed in the outer peripheral part.
  • the first base member 110 is fixed to the exterior cover 101 by a fixing member such as a screw, for example.
  • the flange 111 protrudes inward from the opening of the exterior cover 101 and overlaps with the inner peripheral portion of the exterior cover 101.
  • the first base member 110 is fixed to the outer cover 101 by the fixing member passing through the flange 111 and the inner peripheral portion of the outer cover 101 and screwing.
  • the second base member 120 is disposed on the inner peripheral portion of the first base member 110 and is fixed to the first base member 110.
  • the second base member 120 is a circular container-like member in plan view.
  • the second base member 120 has a flange 111 that engages with the inner peripheral side of the first base member 110.
  • the second base member 120 is made of a metal such as aluminum, iron, galvanized steel plate, etc., and has a light blocking function for blocking light.
  • the second base member 120 supports the light emitting module 130.
  • the light emitting module 130 is mounted on the surface of the second base member 120 on the Z axis minus direction side.
  • the second base member 120 has heat dissipation and is thermally connected to the light emitting module 130 so as to dissipate heat generated by the light emitting module 130.
  • the first base member 110 and the second base member 120 are made of a light blocking material that does not transmit light.
  • the first base member 110 and the second base member 120 constitute a shield.
  • the shield has a light shielding property.
  • the shield is disposed in a posture that partitions the light-transmitting support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70.
  • a first space K ⁇ b> 1 configured by the shield and the translucent support cover 30 and a second space K ⁇ b> 2 configured by the shield, the exterior cover 101, and the diffusion cover 70 are formed by the shield. .
  • the shield blocks light that passes between the first space K1 and the second space K2.
  • the light emitting module 130 is annular.
  • the light emitting module 130 includes a plurality of LED (Light Emitting Diode) light sources 131 and a substrate 132.
  • LED Light Emitting Diode
  • the LED light source 131 emits light to be emitted from the illumination device 1 and causes the light to enter the diffusion cover 70 via the light source cover 140.
  • the LED light source 131 is a so-called SMD (Surface Mount Device) type LED element.
  • the SMD type LED element is a package type LED element in which an LED chip (light emitting element) is mounted in a resin-molded cavity, and a phosphor-containing resin is sealed in the cavity.
  • the LED light source 131 is turned on and off under the control of a control unit (not shown) provided in the power supply unit.
  • the LED light source 131 is controlled by a control unit provided in the power supply unit to perform dimming and toning.
  • a surface-mounted LED element that emits white light by a combination of a blue LED chip and a yellow phosphor-containing resin is employed as the LED light source 131.
  • the LED light source 131 may be a straight tube fluorescent lamp, a laser diode, or the like instead of the LED element.
  • the substrate 132 is a mounting substrate for mounting the plurality of LED light sources 131, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like.
  • a pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power for causing the LED light source 131 to emit light from outside is formed on the substrate 132.
  • the two substrates 132 form an annular shape that is the shape of the light emitting module 130.
  • the light source cover 140 covers the entire light emitting surface of the light emitting module 130.
  • the light source cover 140 is annular and has a shape and size corresponding to the light emitting module 130.
  • the light source cover 140 transmits light emitted from the plurality of LED light sources 131 included in the light emitting module 130.
  • the light source cover 140 diffuses (scatters) the light emitted from the plurality of LED light sources 131.
  • the light source cover 140 is fixed to the surface of the second base member 120 on the Z-axis minus direction side by a fixing member so as to cover the inner peripheral portion and the outer peripheral portion of each light emitting module 130.
  • the material of the light source cover 140 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic.
  • the translucent support cover 30 has a frustum shape, and the Z-axis minus direction side is open.
  • the translucent support cover 30 is not limited to a truncated cone shape, and may be a polygonal truncated cone shape.
  • the translucent support cover 30 is an example of a translucent cover.
  • the translucent support cover 30 is disposed so as to cover the opening of the exterior cover 101 from the Z-axis plus direction side, that is, disposed behind the pattern cover 40.
  • the translucent support cover 30 is fixed to the first base member 110 with the outer peripheral portion engaging with the flange 111 of the first base member 110.
  • the translucent support cover 30 substantially supports the instrument body 3 when the lighting device 1 is installed on the construction material.
  • the translucent support cover 30 includes a flat plate portion 31 and a first translucent portion 32.
  • the material of the translucent support cover 30 is, for example, a resin having translucency such as polystyrene, polycarbonate, or acrylic. Note that the rear corresponds to the Z-axis negative direction side.
  • the flat plate portion 31 is a portion that is electrically connected to the mounting adapter and has a disk shape.
  • the flat plate portion 31 may be formed of a resin having flame retardancy and electrical insulation.
  • the flat plate portion 31 is provided with a mounting table 50 on which the point light source 52 is mounted.
  • the first translucent part 32 has translucency, and transmits light transmitted through the pattern cover 40, that is, light emitted from the light emitting module 130 through the pattern cover 40.
  • the first light transmitting portion 32 has a truncated cone shape that spreads outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane.
  • the outer peripheral portion of the first light transmitting portion 32 is engaged with the flange portion 111 of the first base member 110.
  • the material of the 1st translucent part 32 is resin which has translucency, such as a polystyrene, a polycarbonate, an acryl, for example.
  • the XZ plane here means a plane defined by the X-axis direction and the Z-axis direction, and the same applies to other cases where the XX plane is described.
  • the pattern cover 40 transmits the light emitted from the light emitting module 130, and allows the transmitted light to enter the first light transmitting part 32.
  • the pattern cover 40 forms a frustum shape that is inclined outward from the outer peripheral portion of the flat plate portion 31 when viewed in cross section in the XZ plane.
  • the pattern cover 40 may be a film on which a pattern is printed.
  • the pattern cover 40 has a truncated cone shape, but is not limited thereto, and may be a polygonal truncated cone shape.
  • the pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the light source increases.
  • the pattern cover 40 is disposed between the instrument body 3 and the translucent support cover 30 and faces the first translucent part 32 of the translucent support cover 30 with a gap.
  • the pattern cover 40 has an end on the Z axis plus direction side supported by the outer peripheral portion of the flat plate portion 31, and an end on the Z axis minus direction side supported by the second base member 120.
  • the pattern cover 40 is covered with the translucent support cover 30 when the lighting device 1 is viewed from the positive direction of the Z axis, and is covered with the diffusion cover 70 when the lighting device 1 is viewed from the negative direction of the Z axis.
  • the pattern cover 40 is disposed behind the point light source 52.
  • the pattern cover 40 includes a second light transmitting portion 42 and a light shielding portion 43.
  • the second light transmitting part 42 transmits light emitted from the point light source 52.
  • the material of the second light transmitting part 42 is a resin having a light transmitting property such as polystyrene, polycarbonate, acrylic, or the like.
  • the light shielding unit 43 has a light shielding property to block the light emitted from the point light source 52.
  • the light shielding part 43 may be formed by printing a light shielding material on the second light transmitting part 42, or the light shielding part 43 and the second light transmitting part 42 may be integrally formed by extrusion molding.
  • the light shielding portion 43 may be formed on any surface of the second light transmitting portion 42.
  • the material of the light shielding portion 43 may be a highly reflective resin that reflects light emitted from the point light source 52, or a light absorbing material that absorbs light emitted from the point light source 52.
  • a material formed of a hard white resin material such as polybutylene terephthalate may be used, or a material formed with a metal reflective film such as silver or aluminum may be used.
  • the second light transmitting part 42 or the light shielding part 43 forms a predetermined pattern.
  • the pattern may have any shape and is not particularly limited.
  • the pattern may be a geometric pattern, for example.
  • a predetermined pattern shown in FIGS. 4 to 6 is formed on the pattern cover 40.
  • FIG. 4 is a plan view illustrating the pattern cover 40a of the lighting device 1 according to the first embodiment.
  • the pattern cover 40a includes a second light transmitting portion 42a and a light shielding portion 43a.
  • FIG. 5 is a plan view illustrating the pattern cover 40b of the lighting device 1 according to the first embodiment.
  • the pattern cover 40b includes a second light transmitting part 42b and a light shielding part 43b.
  • FIG. 6 is a plan view illustrating the pattern cover 40c of the lighting device 1 according to the first embodiment.
  • the pattern cover 40c includes a second light transmitting part 42c and a light shielding part 43c. Note that the pattern of the pattern cover 40 of the present embodiment is different from the patterns of FIGS.
  • the predetermined pattern may be a geometric pattern in which one or more types of shapes are arranged according to a certain rule, or may be a pattern in which irregular shapes are combined. Note that the predetermined patterns shown in FIGS. 4 to 6 are merely examples, and are not limited to FIGS. 4 to 6, and other patterns may be used.
  • the mounting table 50 is a columnar member that extends in the negative Z-axis direction from the surface on the pattern cover 40 side of the flat plate portion 31 of the translucent support cover 30.
  • the mounting table 50 has a mounting surface 50a on which the substrate 51 on which the point light source 52 is mounted is mounted at the lower end on the Z axis minus direction side.
  • a lead wire for supplying power to the point light source 52 is provided inside the mounting table 50.
  • the mounting table 50 has a heat dissipation property and is thermally connected to the point light source 52 so as to dissipate heat generated by the point light source 52.
  • the mounting table 50 is made of a metal such as aluminum, iron, or galvanized steel sheet.
  • the point light source 52 is disposed on the mounting surface 50 a of the mounting table 50 through the substrate 51, and is disposed between the pattern cover 40 and the diffusion cover 70.
  • the point light source 52 is a module having a light emitting diode.
  • the point light source 52 may have the same configuration as the LED light source 131 and the substrate 132 described above.
  • the point light source 52 is mounted on the substrate 51 in such a direction as to irradiate light in the negative Z-axis direction.
  • the point light source 52 faces the second base member 120 and is arranged in a posture that emits light toward the pattern cover 40.
  • the point light source 52 needs to be regarded as a point with respect to the pattern cover 40, when the construction material is irradiated with light transmitted through the pattern cover 40, a pattern of light and shadow is clearly projected onto the construction material. Just do it.
  • the light emitting surface of the point light source 52 is 1/5 of the length in the width direction of the pattern cover 40 (inclined in the Z-axis direction). In the following, the relationship is more preferably 1/10 or less. The reason why the point light source 52 is used in this embodiment will be described later.
  • the diffusion cover 70 is a cover that has translucency and diffuses light.
  • the diffusion cover 70 constitutes a part of the outline of the lighting device 1.
  • the diffusion cover 70 covers the instrument body 3 and the light emitting module 130.
  • the diffusion cover 70 is fixed to the outer peripheral portion of the exterior cover 101. That is, the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52.
  • the diffusion cover 70 is formed in a flat dome shape having a gently curved surface on the light emission side of the light emitting module 130 so as to protrude in the negative direction of the Z axis toward the center.
  • the front corresponds to the Z-axis plus direction side.
  • each light source cover 140 coincides with the central axis O.
  • the control circuit has an electronic circuit for adjusting DC power output from the power supply unit to the light emitting module 130 and the point light source 52.
  • the control circuit controls operations such as lighting, extinguishing, dimming, and toning of the light emitting module 130 and the point light source 52 in accordance with control signals from a remote controller or the like.
  • the control circuit realizes these operations by a microcomputer, a processor, or the like, or a dedicated circuit that controls the current value supplied to the light emitting module 130 and the point light source 52 according to the input control signal.
  • the power supply unit is housed in a metal box and houses a board on which circuit components such as a lighting circuit are mounted.
  • a power cable from a commercial AC power supply is connected to the power supply unit, and the commercial AC power is supplied to the lighting circuit.
  • the power supply unit is electrically connected to the control circuit.
  • FIG. 7 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using an LED bulb.
  • FIG. 7 as a comparative example, when an LED bulb is used instead of a point light source, for example, a part of the light emitted from the point H1 on the upper side of the LED bulb is shielded by the light shielding portion, and the remaining light is left. Passes through the pattern cover and is projected onto the ceiling. Further, part of the light emitted from the lower point H2 of the LED bulb is shielded by the light shielding portion, and the rest passes through the pattern cover and is projected onto the ceiling surface.
  • a part of the light emitted from the point H1 on the upper side of the LED bulb is shielded by the light shielding portion, and the remaining light is left. Passes through the pattern cover and is projected onto the ceiling. Further, part of the light emitted from the lower point H2 of the LED bulb is shielded by the light shielding portion, and the rest passes through the pattern cover and is projected onto the ceiling surface.
  • the area of the light emitted from the LED bulb is large, even if the pattern is projected on the ceiling surface by the light emitted from the point H1, the shadow portion of the pattern formed by the light emitted from the point H1 Light emitted from the point H2 is illuminated.
  • the pattern projected on the ceiling surface is blurred, and a person cannot clearly recognize the pattern.
  • FIG. 8 is an explanatory view exemplifying the state of light shielded by the light shielding portion when the pattern cover is arranged in parallel with the ceiling surface in an illumination device using a point light source.
  • the height of the pattern cover with respect to the ceiling surface is A
  • the height of the point light source with respect to the mounting table is B
  • the radius of the pattern cover is C.
  • the point light source is set to a predetermined height from the mounting table, in other words, the height B must be set to a predetermined value or more.
  • the pattern projected on the construction material only needs to be larger than the illumination device when the illumination device is viewed in plan view.
  • the horizontal width of the light and shadow pattern projected on the construction material is 1.5 which is the lateral width of the illumination device. It may be twice or more.
  • FIG. 9 is an explanatory view exemplifying the shadow of the light shielding portion formed by light when the pattern cover is arranged in an inclined posture with respect to the ceiling surface in the apparatus according to the present embodiment.
  • the angle between a virtual straight line V parallel to the ceiling surface and the direction of light incident on the light shielding part closest to the point light source is defined as ⁇ .
  • the angle ⁇ is set under the same conditions as in FIG. In this case, the size of the light and shadow pattern projected on the ceiling surface by the light emitted from the illumination device 1 in FIG. 8 and the size of the pattern projected on the ceiling surface by the light emitted from the illumination device in FIG. Are the same.
  • the diameter of the lighting device increases because the pattern cover is horizontally arranged on the ceiling surface, but in FIG. 9, the pattern cover is inclined with respect to the ceiling surface. Therefore, it is possible to suppress an increase in the diameter of the lighting device.
  • FIG. 10 is a perspective view showing when only the point light source 52 of the lighting apparatus 1 according to Embodiment 1 is turned on.
  • the lighting device 1 can be used as normal lighting.
  • the light emitted from the light emitting module 130 enters the diffusion cover 70 through the light source cover 140 and is transmitted through the diffusion cover 70. Thereby, the diffused light is emitted from the diffusion cover 70.
  • the light emitting module 130 and the point light source 52 can be turned on simultaneously.
  • the light source module 130 is shielded from light by the first base member 110 and the second base member 120 between the point light source 52 and the light emitting module 130, when only the point light source 52 is lit, the point light source 52. In the case where only the light emitting module 130 is lit, the light emitted from the light emitting module 130 is not emitted from the translucent support cover 30.
  • the illumination device 1 includes the point light source 52 that emits light, the translucent part that transmits light emitted from the point light source 52, and the light shielding that blocks light emitted from the point light source 52. And a pattern cover 40 disposed behind the point light source 52, and having translucency, disposed in front of the pattern cover 40 and the point light source 52, and diffusing light from the rear to the front And a diffusion cover 70 that emits light.
  • the lighting device 1 When the lighting device 1 is installed on a construction material, when the point light source 52 is turned on, the light emitted from the point light source 52 is incident on the pattern cover 40, a part of the light is blocked by the light blocking portion 43, and the remaining light is transmitted. Translucent light. Of the light emitted from the point light source 52, a shadow is formed on the portion shielded by the light shielding portion 43. Thereby, the light transmitted through the pattern cover 40 projects the pattern onto the construction material.
  • a pattern can be projected onto a construction material such as a wall or a ceiling.
  • the diffusion cover 70 is disposed in front of the pattern cover 40 and the point light source 52, the pattern cover 40 is hidden by the diffusion cover 70. Thereby, since it becomes difficult to see the pattern of the pattern cover 40 when the lighting device 1 is turned off, it is difficult for a person to feel uncomfortable.
  • the pattern cover 40 is frustum shape.
  • the pattern cover 40 surrounds the point light source 52 and is arranged so that the diameter of the frustum decreases as the distance from the point light source 52 increases.
  • the pattern cover 40 since the pattern cover 40 has a truncated cone shape, the pattern cover 40 is inclined with respect to the Z-axis direction when the cross section when the lighting device 1 is cut in the XZ plane is viewed in cross section. . Therefore, the pattern corresponding to the pattern cover 40 can be projected onto the construction material in a wider range than when the pattern cover 40 is parallel to the XY plane.
  • the lighting device 1 is further disposed behind the pattern cover 40, and transmits light toward the diffusion cover 70, and a translucent support cover 30 that emits light transmitted through the pattern cover 40.
  • the light emitting module 130 that emits light, the translucent support cover 30, the pattern cover 40, the point light source 52, the light emitting module 130, and the diffusion cover 70 are arranged in a posture to partition, and the light emitting module 130 is provided on the surface on the diffusion cover 70 side.
  • the diffusion cover 70 covers the light emitting module 130 and diffuses and emits the light emitted from the light emitting module 130 at the rear.
  • a shield has light-shielding property.
  • the shielding body does not emit light emitted from the point light source 52 from the diffusion cover 70 and only the light emitting module 130 is turned on.
  • the emitted light is transmitted through the pattern cover 40 and the translucent support cover 30, and the pattern is not projected onto the construction material.
  • normal illumination and indirect illumination can be performed separately or simultaneously.
  • the pattern cover 40 is arranged in such a manner that the pattern of the pattern cover 40 cannot be seen through the diffusion cover 70 when the illumination device 1 is viewed when the light is turned off.
  • FIG. 11 is a cross-sectional view showing a lighting device 11 according to a modification of the first embodiment.
  • the point light source 352 is disposed on the second base member 120.
  • the mounting table 50 is not provided in this modification.
  • the other structure in the illuminating device 11 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified,
  • symbol is attached
  • the point light source 352 is disposed at the central portion of the surface of the second base member 120 of the shield on the Z axis plus direction side. In this modification, it is arranged in the center line shape of the illumination device 11 and coincides with the optical axis emitted by the point light source 352.
  • the optical axis is parallel to the Z-axis direction.
  • the point light source 352 is disposed so as to emit light toward the Z-axis plus direction.
  • the substrate 351 of the point light source 352 is thermally connected to the second base member 120.
  • the point light source 352 is disposed on the shield in a posture that emits light toward the pattern cover 40.
  • the point light source 352 can be disposed on the second base member 120 (a part of the shield). Thereby, since the point light source 352 can be directed to the pattern cover 40, the light emitted from the point light source 352 can be easily emitted toward the pattern cover 40. For this reason, it becomes easy to ensure the light quantity of the light which permeate
  • Embodiment 2 The configuration of the illumination device 201 of this embodiment is different from that of the embodiment in that it does not have the light emitting module 130 of the first embodiment.
  • the other structure in the illuminating device 201 of this Embodiment is the same as that of Embodiment 1 unless otherwise specified, and about the same structure, the same code
  • FIG. 12 is a perspective view showing the illumination device 201 according to the second embodiment.
  • FIG. 13 is an exploded perspective view showing the lighting apparatus 201 according to the second embodiment.
  • FIG. 14 is a cross-sectional view showing lighting apparatus 201 according to Embodiment 2 taken along line XIV-XIV in FIG.
  • the illumination device 201 includes an exterior cover 210, a pattern cover 220, a housing 230, a mounting table 50, a point light source 252, a diffusion cover 260, and a control circuit (not shown). And a power supply unit (not shown).
  • the exterior cover 210 constitutes a part of the outer shell of the lighting device 201.
  • the exterior cover 210 is a ring-shaped member having a circular vessel shape in plan view and having an opening formed in the center portion.
  • the exterior cover 210 is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 so as to cover the pattern cover 220.
  • the exterior cover 210 supports a pattern cover 220 that covers the opening.
  • the outer cover 210 fixes the diffusion cover 260 at the outer peripheral portion and engages with the pattern cover 220 at the inner peripheral portion.
  • the material of the exterior cover 210 is a cover that does not transmit light (opaque), and is, for example, a resin such as ABS resin or polycarbonate.
  • the exterior cover 210 is an example of a support.
  • the pattern cover 220 is disposed so as to cover the opening of the exterior cover 210.
  • the outer periphery of the pattern cover 220 is fixed to the inner periphery of the exterior cover 210.
  • the pattern cover 220 has a shape corresponding to the shape of the opening of the exterior cover 210.
  • the pattern cover 220 has a disk shape, but the shape is not limited to a circle, and may be a polygonal shape.
  • the pattern cover 220 has an opening 220a formed in the center portion.
  • the inner peripheral portion of the pattern cover 220 is engaged with the housing 230, and the pattern cover 220 is fixed to the housing 230.
  • the pattern cover 220 includes a light shielding part 221 and a second light transmitting part 222.
  • a light shielding portion 221 is printed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the pattern cover 220.
  • the light shielding unit 221 forms a pattern that blocks light emitted from the point light source 252.
  • the pattern cover 220 may be overlaid with a transparent cover as a separate member.
  • the pattern cover 220 may be disposed on the surface on the Z-axis plus direction side or the surface on the Z-axis minus direction side of the transparent cover.
  • the pattern cover 220 may have a shape corresponding to the transparent cover.
  • the housing 230 houses a control circuit and a power supply unit.
  • the housing 230 is a bottomed cylinder that is open at both ends.
  • the casing 230 is long in the Z-axis direction, and the edge portion on the Z-axis minus direction side is engaged with the pattern cover 220.
  • Inside the housing 230 a mounting table 50 that protrudes in the negative Z-axis direction from the bottom portion is disposed. The mounting table 50 is inserted through the opening 220 a of the pattern cover 220.
  • the point light source 252 is mounted on the mounting surface 50 a at the lower end of the mounting table 50 on the minus side of the Z axis via the substrate 251.
  • the point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220.
  • the point light source 252 protrudes in the negative Z-axis direction from the pattern cover 220 when placed on the placement surface 50a.
  • the point light source 252 exists in a position overlapping with the diffusion cover 260 when the illumination device 201 is viewed from the side surface in the Z-axis direction.
  • the point light source 252 may exist at a position overlapping the outer cover 210 or may exist at a position overlapping the diffusion cover 260 and the outer cover 210.
  • the diffusion cover 260 covers the point light source 252 and the pattern cover 220.
  • the diffusion cover 260 is fixed to the outer peripheral portion of the exterior cover 210.
  • the diffusion cover 260 has a predetermined haze so that the pattern drawn on the pattern cover 220 is not visible when the lighting device 201 is viewed from the negative Z-axis direction. Since the pattern of the pattern cover 220 may be visible on the diffusion cover 260 depending on the distance between the diffusion cover 260 and the pattern cover 220, the cloudiness is such that the pattern cannot be seen. Even if the cloudiness is low, the pattern on the pattern cover 220 cannot be seen if the pattern cover 220 is separated from the diffusion cover 260 by a predetermined distance. For this reason, the illumination device 201 prevents the pattern of the pattern cover 220 from being visually recognized by the relationship between the cloudiness of the diffusion cover 260 and the distance between the pattern cover 220 and the diffusion cover 260.
  • the diffusion cover 260 may be subjected to a popping process on the surface of the base material, or a prism sheet on which irregularities of a fine structure are formed may be attached to the surface of the base material.
  • a translucent member having a light emitting property may be included, or a translucent member in which an infinite number of bubbles are formed on a base material.
  • the light emitted from the point light source 252 is incident on the pattern cover 220, part of which is shielded by the light shielding part 221, and the rest passes through the second light transmitting part 42 of the pattern cover 220 and becomes a construction material. Project.
  • the light transmitted through the pattern cover 220 is applied to the construction material. Thereby, as shown in FIG. 15, the pattern corresponding to the pattern cover 220 is projected on the construction material.
  • the light emitted from the point light source 252 enters the diffusion cover 260 and is transmitted through the diffusion cover 260. Thereby, the diffused light is emitted from the diffusion cover 260.
  • the lighting device 201 illuminates the surroundings and projects a pattern corresponding to the pattern cover 220 onto the construction material.
  • FIG. 15 is a perspective view illustrating the lighting device 201 according to Embodiment 2 when it is turned on.
  • the illumination device 201 further includes a support that is disposed between the diffusion cover 260 and the pattern cover 220 and supports the diffusion cover 260 that covers the pattern cover 220.
  • the point light source 252 is disposed between the diffusion cover 260 and the pattern cover 220.
  • a support body interrupts the light which the point light source 252 emits.
  • the lighting device 201 When the lighting device 201 is installed on the construction material, when the point light source 252 is turned on, part of the light emitted from the point light source 252 is incident on the diffusion cover 260 and is transmitted through the diffusion cover 260. Accordingly, the diffused light is emitted from the diffusion cover 260 to illuminate the surroundings. Another part of the light is shielded by the light shielding part 221 of the pattern cover 220, and the remaining light is transmitted through the light transmitting part of the pattern cover 220. Of the light emitted from the point light source 252, a shadow is formed by the portion shielded by the light shielding unit 221, so that the pattern is projected onto the construction material by the light transmitted through the pattern cover 220.
  • this lighting device 201 a pattern can be projected onto construction materials such as walls and ceilings.
  • the pattern cover 40 may be parallel to the XY plane.
  • the pattern cover 40 In the relationship between the pattern cover 40 and the point light source 52, if the point light source 52 is brought close to the pattern cover 40, the pattern projected on the ceiling surface can be enlarged, but if it is too close, the pattern is projected on the ceiling surface. In some cases, the height of the point light source 52 with respect to the pattern cover 40 falls within a predetermined range.
  • FIG. 16 shows a system in the case where the lighting devices according to the above-described first and second embodiments and the modified example of the first embodiment are installed and lit in the room. By installing these lighting devices 1 and 201, various lighting environments can be produced.
  • FIG. 16 is a perspective view of a system including a plurality of lighting devices 1 and 201 according to a modification.
  • the pattern cover may be configured by only the light shielding portion.
  • the second light transmitting part is a cavity.
  • a 2nd light transmission part is not limited to a transparent material, You may mean the opening formed in a pattern cover.
  • the pattern cover is detachable, and the pattern cover can be appropriately replaced.

Abstract

L'invention concerne un dispositif d'éclairage (1) qui comporte: une source lumineuse ponctuelle (52) émettant une lumière; une enveloppe (40) à motif placée à l'arrière de la source lumineuse ponctuelle (52) et possédant une partie transmettant la lumière qui laisse passer la lumière générée par la source lumineuse ponctuelle (52) et une partie (43) bloquant la lumière qui empêche la lumière générée par la source lumineuse ponctuelle (52) de passer; et une enveloppe (40) de diffusion transmettant la lumière placée à l'avant de l'enveloppe (40) à motif et de la source lumineuse ponctuelle (52), laquelle enveloppe de diffusion diffuse et émet la lumière de l'arrière vers l'avant.
PCT/JP2019/021999 2018-06-08 2019-06-03 Dispositif d'éclairage WO2019235428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018110204 2018-06-08
JP2018-110204 2018-06-08

Publications (1)

Publication Number Publication Date
WO2019235428A1 true WO2019235428A1 (fr) 2019-12-12

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ID=68770368

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Application Number Title Priority Date Filing Date
PCT/JP2019/021999 WO2019235428A1 (fr) 2018-06-08 2019-06-03 Dispositif d'éclairage

Country Status (2)

Country Link
TW (1) TW202001146A (fr)
WO (1) WO2019235428A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010170959A (ja) * 2009-01-26 2010-08-05 Panasonic Electric Works Co Ltd 照明器具
JP2017045624A (ja) * 2015-08-27 2017-03-02 日立アプライアンス株式会社 Ｌｅｄ照明装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010170959A (ja) * 2009-01-26 2010-08-05 Panasonic Electric Works Co Ltd 照明器具
JP2017045624A (ja) * 2015-08-27 2017-03-02 日立アプライアンス株式会社 Ｌｅｄ照明装置

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